430 citations · 1.4k across the 25 of their papers we have counts for
4 papers · 2 filters
Testing spectral filters as Gaussian quantum optical channels
K. Laiho, A. Christ, K. N. Cassemiro +1
We experimentally investigate the mode characteristics of multimode radiation fields propagating through frequency dependent Gaussian channels. After manipulating the twin beams em…
Probing multimode squeezing with correlation functions
Andreas Christ, Kaisa Laiho, Andreas Eckstein +2
Broadband multimode squeezers constitute a powerful quantum resource with promising potential for different applications in quantum information technologies such as information cod…
Probing the negative Wigner function of a pulsed single photon point by point
Kaisa Laiho, Katiuscia N. Cassemiro, David Gross +1
We investigate quantum properties of pulsed light fields point by point in phase space. We probe the negative region of the Wigner function of a single photon generated by the mean…
Accessing the purity of a single photon by the width of the Hong-Ou-Mandel interference
Katiuscia N. Cassemiro, Kaisa Laiho, Christine Silberhorn
We demonstrate a method to determine the spectral purity of single photons. The technique is based on the Hong-Ou-Mandel (HOM) interference between a single photon state and a suit…